diff --git a/supergfxctl.changes b/supergfxctl.changes
index e82e2a5..bfd7c63 100644
--- a/supergfxctl.changes
+++ b/supergfxctl.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed Dec 27 22:56:20 UTC 2023 - Jan Engelhardt <jengelh@inai.de>
+
+- Avoid bashisms in build recipe
+
 -------------------------------------------------------------------
 Tue Nov 14 05:46:34 UTC 2023 - rn <R_Nik_C@proton.me>
 
diff --git a/supergfxctl.spec b/supergfxctl.spec
index ab4ad5b..bfd451f 100644
--- a/supergfxctl.spec
+++ b/supergfxctl.spec
@@ -65,11 +65,11 @@ systemctl enable supergfxd.service
 
 %postun
 %service_del_postun_with_restart supergfxd.service
-if [[ -e %{_sysconfdir}/modprobe.d/supergfxd.conf ]]
+if [ -e %{_sysconfdir}/modprobe.d/supergfxd.conf ]
 then
     rm %{_sysconfdir}/modprobe.d/supergfxd.conf
 fi
-if [[ -e %{_sysconfdir}/modprobe.d/nvidia.conf ]]
+if [ -e %{_sysconfdir}/modprobe.d/nvidia.conf ]
 then
     if grep -q "# options nvidia-drm.modeset=1" %{_sysconfdir}/modprobe.d/nvidia.conf
     then